Meetings in Business Career doesn't work

I'm playing The Sims 3 and my sim is now on level 9 of the business career, but out of nowhere his work progress started to decline.

First of all, his relation with his co-workers is not good anymore, even though he's friend with most of them, and it doesn't get better when I spend time talking or meeting them. And about the meetings, I have gone to at least five meetings since he was promoted, but it doesn't show on my work progress (it's with that red face). This is seriously annoying me and I don't know how to get him promoted without solving this issues. Does anyone know what should I do? 

p.s: english is not my first language so i apologize for any mistake